How to use a function in a loop for whole database in image processing using MatLab

I have a code for finding a skeleton of an image. I want to use that code to find the skeleton of all frames present in a folder as separate images. These image are named sequentially, such as 001-nm-01-090-062.png, 001-nm-01-090-063.png, 001-nm-01-090-064.png etc. I want to store the skeletonized image in a separate folder.

The code for skeleton is

% read in a sample image -- 
img = imread('C:\Users\anurag\Desktop\090\001-nm-01-090-064.png');
img=im2bw(img,.5);
imshow(img);

% the standard skeletonization:
imshow(bwmorph(img,'skel',inf));

% the new method:
imshow(bwmorph(skeleton(img)>35,'skel',Inf));

Answer 1

[KSSV]

imgFiles = dir('*.png');   % get all png files in the folder 
numfiles = length(imgFiles);  % total number of files 
for k = 1:numfiles   % loop for each file 
    img = imgFiles(k).name    % present image file 
    %%do what you want %%
end